This is familiar delegation, NotificationCenter, Key-Value Observing the concepts

Merge sort is an efficient, general-purpose, comparison-based sorting algorithm.

This is sample for how to make beautiful code.

MacOS Setup guide. This guide is written so that I can use it every time reset my Mac.

Markdown cheatsheet for all your blogging needs - headers, lists, images, tables and more! An illustrated guide based on GitHub Flavored Markdown.